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137869197 = 355782507
BaseRepresentation
bin10000011011110…
…11011110001101
3100121102110222120
420031323132031
5240243303242
621403003153
73262604004
oct1015733615
9317373876
10137869197
1170907194
123a2094b9
132274250b
141444bc3b
15c1851ec
hex837b78d

137869197 has 8 divisors (see below), whose sum is σ = 184157856. Its totient is φ = 91746672.

The previous prime is 137869163. The next prime is 137869229. The reversal of 137869197 is 791968731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137869197 - 215 = 137836429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137869117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39583 + ... + 42924.

It is an arithmetic number, because the mean of its divisors is an integer number (23019732).

Almost surely, 2137869197 is an apocalyptic number.

It is an amenable number.

137869197 is a deficient number, since it is larger than the sum of its proper divisors (46288659).

137869197 is an equidigital number, since it uses as much as digits as its factorization.

137869197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83067.

The product of its digits is 571536, while the sum is 51.

The square root of 137869197 is about 11741.7714591964. The cubic root of 137869197 is about 516.6016021200.

The spelling of 137869197 in words is "one hundred thirty-seven million, eight hundred sixty-nine thousand, one hundred ninety-seven".

Divisors: 1 3 557 1671 82507 247521 45956399 137869197